i5 3570k and Z77D3H

SamMillarF1 · 20 Sep 2012 at 22:05

Hi Guys

I've managed my first successful overclock for a newb! I've got my machine running at 4GhZ without changing any voltages but after seeing the performance increase in my games already I'm addicted

I understand that anything above 4.8 isn't really going to be feasible unless I stick hundreds of fans in there etc. It's not a stock cooler, but I'm looking to achieve around 4.8 GhZ.
So for every .1 of a GhZ I add, how much voltage would I need to add as an example?

Also it seems that when I tamper with the voltage that when it restarts, I get stuck on the bios splash screen and my keyboard and mouse become inoperable after a few seconds.

SamMillarF1 · 21 Sep 2012 at 00:02

Ok so I've managed to get it to 4.4 without changing voltages. Tried 4.5 and it needed the voltage changing but when I do that I get crashed on the BIOS splash screen and then I need to clear CMOS.

So how can I change the voltage without it crashing?

wazza300 · 21 Sep 2012 at 00:37

you have to add a tiny amount through dvid,this only gets applied at load,maybe start with +0.010v

dont use big amounts,only small amount is needed,keep an eye how much voltage is used in cpu-z at 100% stress/cpu usage,might need a level higher llc

SamMillarF1 · 21 Sep 2012 at 10:57

Ok but problem is that when I change the voltage, I get stuck on the BIOS splash screen as if the PC is booting up.

wazza300 · 21 Sep 2012 at 11:46

you might need one or two clicks more cpu/vtt,around 1.08-1.10v

SamMillarF1 · 21 Sep 2012 at 11:47

wazza300 said:
you might need one or two clicks more cpu/vtt,around 1.08-1.10v

Is there no easier way to check as I need to take the battery out every time to reset it.

JamesM · 21 Sep 2012 at 13:06

If you can't boot into the bios then I would have thought you'd need a fair bit more voltage.

For example for 4.5GHz I need at least 1.32v yet I can set it to 1.28v and it will still go through POST, just will crash once it reaches windows.

Out of interest what are your voltages at the moment? Are you using manual or offset voltage?

SamMillarF1 · 21 Sep 2012 at 14:14

JamesM said:
If you can't boot into the bios then I would have thought you'd need a fair bit more voltage.

For example for 4.5GHz I need at least 1.32v yet I can set it to 1.28v and it will still go through POST, just will crash once it reaches windows.

Out of interest what are your voltages at the moment? Are you using manual or offset voltage?

It's running stable at 4.2 without altering the voltages so the settings in the BIOS for voltage at the moment is AUTO.

HankScorpio · 21 Sep 2012 at 14:34

Turn it off auto, you get crazy high volts with that. Just try it in steps by adding volts for best results. My 4.5Ghz requires 1.280vcore so try around that with IBT/prime95 and check event logger for WHEA errors. Always keep an eye on the temps.